LIST OP ILLUSTRATIONS IN TEXT. 



FIG. PAGE 



1. Block of Flint from Crayford, Kent, broken by Palaeolithic 



Man in making an Implement; also the unfinished 

 Implement made from the same . . .7 



2. Palatal view of left upper teeth of Adapis magna, from 



Upper Eocene, Hordwell ...... 11 



3. Model of skull and mandible of Megaladapis insignia, from 



a Cavern in Madagascar . . . . . .11 



4. Head of the " Sabre-toothed Tiger " (Machserodus neog&us), 



from the Pampa Formation of Buenos Aires. (After 



W. D. Matthew) 13 



5. Skull and mandible of the Cave-bear (Vrsus spelseus), 



from a Pleistocene Cavern Deposit in Bavaria . . 14 



6. Molar tooth of Hyienarctos, from the Bed Crag of Suffolk . 15 



7. Bight ramus of mandible of Cephalogale brevirostris, from 



the Oligocene Phosphorites of France .... 15 



8. Skeleton of Byssnodon cruentus, Leidy, from the Oligocene 



of Dakota, U.S.A. (After W. B. Scott) .... 16 



9. Skeleton of fore foot of Perissodactyl or Uneven-toed 



Ungulata (Tapir, Bhinoceros, and Horse) ... 19 



10. Skull and mandible of the Slender-nosed Bhinoceros 



(Bhinoceros leptorhinus), from the Pleistocene of Ilford, 

 Essex 20 



11. Skull and mandible of Aceraiheri/u/m megalodus, from the 



Upper Miocene of Colorado, U.S.A. (After Cope) . . 21 



12. Skeleton of Titanotherium robustum, from the Oligocene 



of Dakota, U.S.A 23 



13. Diagram showing the gradual loss of toes in the feet and 



increase of complexity in the teeth of the Horse-like 

 Ungulata ......... 24 



14. Left upper teeth in maxilla of Palmothervwm crasswm, 



from the Upper Eocene Gypsum of Montmartre, Paris. 

 (After Gaudry) 25 



15. Bestoration of the skeleton and outline of the body of 



Palseotherium magnwm. (After Cuvier) ... 26 



16. Third right upper true molar tooth of Chalicotherium 



sinense, from the Pliocene of China .... 27 



17. Skeleton of fore foot of Artiodactyl or Even-toed Ungulata 



(Pig, Deer, and Camel) . . . . . . .28 



18. Skull, symphysis of mandible, and tooth of Hippopotamus 



sivalensis, from the Lower Pliocene of the Siwalik Hills, 

 India 30 



